Products Description
Galvanized hex head bolts, also commonly known as galvanized external hex head bolts or hot-dip galvanized hex head screws, are among the most widely used and versatile basic fasteners in the industrial fastening sector. We use high-quality carbon steel or alloy steel as the base material, with surfaces treated through hot-dip galvanizing or electrogalvanizing processes. These bolts offer three core advantages: high tensile strength, excellent rust and corrosion resistance, and ease of installation. They are widely suitable for various operating conditions-including indoor and outdoor environments, dry and wet conditions, and high and low levels of corrosion-making them the fastening solution of choice for projects in steel structures, photovoltaics, power generation, construction machinery, and outdoor facilities.
Parameters
| material | Carbon steel grade 8.8 |
|
Industry applicable |
construction industry, general... |
| Surface treatment | Blue and white zinc |
| Product Grade | Grade A |
|
Model specifications |
M4-M27 |
Product Features
Superior Rust Resistance
Whether in coastal areas, humid environments, or outdoor settings exposed to rain, these products are resistant to rust and breakage, eliminating the need for frequent replacement and significantly reducing long-term maintenance costs.
01
High Load-Bearing Capacity
Made from high-quality carbon steel and alloy steel, these bolts offer excellent tensile and shear strength, resisting deformation and breakage. Available in various strength grades to accommodate everything from light to heavy loads; the threads are uniform and full, ensuring a tight fit with nuts. Even in vibrating environments (such as construction machinery), they won't strip or loosen, providing a more secure fastening.
02
Easy Installation
The standard hex head design requires no special tools-it can be easily tightened using a household adjustable wrench, a socket wrench on a construction site, or a power wrench. Installation and removal are quick and effortless. Suitable for various scenarios such as high-altitude work, confined spaces, and bulk installations, it significantly improves work efficiency.
03
Comprehensive Range of Sizes
We support non-standard sizes, special lengths, and custom zinc coating thicknesses. We also offer complete sets including nuts, flat washers, and spring washers, eliminating the need for multiple suppliers and providing a one-stop solution.
04
Reliable Quality
Every batch of products undergoes individual inspection before leaving the factory to ensure zero defects. Quality inspection reports are available. Whether for personal use, construction sites, or project procurement, you can choose with confidence, free from concerns about quality issues.
05
Product Applications
- Photovoltaic Power Plants: PV mounting systems, solar panel fastening (20-year rustproofing for outdoor use);
- Steel Structure Engineering: Factory buildings, warehouses, high-rise buildings, steel bridge connections;
- Power Facilities: Transmission towers, substations, distribution cabinets, fastening of outdoor power equipment;
- Construction Machinery: Excavators, cranes, loaders, and fastening of heavy equipment components;
- Outdoor Facilities: Guardrails, streetlight poles, billboards, landscaping equipment, and dock equipment;
- Automotive Manufacturing: Trucks, buses, construction machinery chassis, and body connections;
- General Manufacturing: Machinery, furniture, home appliances, piping, brackets, and other everyday fastening applications.
How to contact us
If you're looking for high-quality, highly rust-resistant, and high-strength galvanized hex head bolts, feel free to contact us anytime! We offer free samples, free quotes, and technical support to help you select the most suitable specifications, providing a one-stop solution for all your fastening needs.
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